Is this a bug or what happens ?

[big_b]

Set up a consist in latest 22 build with 2 Locos and 20 wagons
When into driver and just let it run on my Route to test for broken track etc.
It hit another Loco blocking the track I had missed deleting at about 100kph
The lead Loco buried itself into stationary Loco and soon both disappeared but the second Loco and consist continued on for about 200mts then the second Loco just vanished
The 20 wagons it was pulling continued on for another kilometer before coming to a stop

 

[pware]

Sounds like what normally happens.

The stationary loco and the leading loco of the moving train collided and derailed. The second loco also derailed. They were removed because of a setting in the Cleanup Derailed Trains Rule in the Session Editor.

Wagons that were not derailed would continue moving until they are stopped by simulated friction, brakes, etc.